chemical formula wikipedia - EAS
Chemical formula - Wikipedia
https://en.wikipedia.org/wiki/Chemical_formulaWebIn chemistry, the empirical formula of a chemical is a simple expression of the relative number of each type of atom or ratio of the elements in the compound. Empirical formulae are the standard for ionic compounds, such as CaCl 2, and for macromolecules, such as SiO 2.An empirical formula makes no reference to isomerism, structure, or absolute number …
Structural formula - Wikipedia
https://en.wikipedia.org/wiki/Structural_formulaWebThe structural formula of a chemical compound is a graphic representation of the molecular structure (determined by structural chemistry methods), showing how the atoms are possibly arranged in the real three-dimensional space.The chemical bonding within the molecule is also shown, either explicitly or implicitly. Unlike other chemical formula …
International Chemical Identifier - Wikipedia
https://en.wikipedia.org/wiki/International_Chemical_IdentifierWebThe International Chemical Identifier (InChI / ˈ ɪ n tʃ iː / IN-chee or / ˈ ɪ ŋ k iː / ING-kee) is a textual identifier for chemical substances, designed to provide a standard way to encode molecular information and to facilitate the search for such information in databases and on the web.Initially developed by the International Union of Pure and Applied Chemistry …
Glossary of chemical formulae - Wikipedia
https://en.wikipedia.org/wiki/Glossary_of_chemical_formulaeWebThis is a list of common chemical compounds with chemical formulae and CAS numbers, indexed by formula.This complements alternative listing at list of inorganic compounds.There is no complete list of chemical compounds since by nature the list would be infinite. Note: There are elements for which spellings may differ, such as …
Empirical formula - Wikipedia
https://en.wikipedia.org/wiki/Empirical_formulaWebIn chemistry, the empirical formula of a chemical compound is the simplest whole number ratio of atoms present in a compound. A simple example of this concept is that the empirical formula of sulfur monoxide, or SO, would simply be SO, as is the empirical formula of disulfur dioxide, S 2 O 2.Thus, sulfur monoxide and disulfur dioxide, both compounds of …
Chemical equation - Wikipedia
https://en.wikipedia.org/wiki/Chemical_equationWebStructure. A chemical equation (see an example below) consists of a list of reactants (the starting substances) on the left-hand side, an arrow symbol, and a list of products (substances formed in the chemical reaction) on the right-hand side.Each substance is specified by its chemical formula, optionally preceded by a number called stoichiometric …
IUPAC nomenclature of organic chemistry - Wikipedia
https://en.wikipedia.org/wiki/IUPAC_nomenclature_of_organic_chemistryWebIn chemical nomenclature, the IUPAC nomenclature of organic chemistry is a method of naming organic chemical compounds as recommended by the International Union of Pure and Applied Chemistry (IUPAC). It is published in the Nomenclature of Organic Chemistry (informally called the Blue Book). Ideally, every possible organic compound should have …
Sildenafil - Wikipedia
https://en.wikipedia.org/wiki/SildenafilWebSildenafil, sold under the brand name Viagra, among others, is a medication used to treat erectile dysfunction and pulmonary arterial hypertension. It is unclear if it is effective for treating sexual dysfunction in women. It is taken by mouth or by injection into a vein. Onset is typically within twenty minutes and lasts for about two hours.
Dimethyl sulfoxide - Wikipedia
https://en.wikipedia.org/wiki/Dimethyl_sulfoxideWebDimethyl sulfoxide (DMSO) is an organosulfur compound with the formula (CH 3) 2 S O.This colorless liquid is the sulfoxide most widely used commercially. It is an important polar aprotic solvent that dissolves both polar and nonpolar compounds and is miscible in a wide range of organic solvents as well as water. It has a relatively high boiling point. …
Sucrose - Wikipedia
https://en.wikipedia.org/wiki/SucroseWebSucrose, a disaccharide, is a sugar composed of glucose and fructose subunits. It is produced naturally in plants and is the main constituent of white sugar.It has the molecular formula C 12 H 22 O 11.. For human consumption, sucrose is extracted and refined from either sugarcane or sugar beet. Sugar mills – typically located in tropical regions near …

